Disclosure 0001645326-26-000014-1

SEC FORM 4

$133,500.00

Amphastar Pharmaceuticals, Inc. (AMPH)

Acquisition (code M) of 10,000 shares at $13.35 per share.

Reporting Person Zhou Rong · Officer Title SENIOR EVP, PRODUCTION CENTER · Transaction Code M

Traded Sep 16, 2026 · Disclosed Sep 17, 2026

Source: SEC Form 4 · 0001645326-26-000014 · filed 2026-09-17 · View filing →

Composed from the Form 4 as filed with the SEC. Share counts, prices and dates are the filing's own; the disclosure lag is counted in business days from the transaction date to the filing date. What is a Form 4?

Cite this card

Desq Long. "Amphastar Pharmaceuticals, Inc. (AMPH)." Disclosed 2026-09-17. https://desqlong.com/cards/0001645326-26-000014-1 (retrieved 2026-09-26).